For shotguns without ribs the MPB snap-on sight offers Hiviz's LitePipe interchangeability in an easy to attach design for any plain barrel gun. It has two different diameter green and red LitePipes. MPB is compatible with all 12, 16 and 20 gauge plain barrel shotguns without ventilated ribs.
WARNING: To the state of California, this product is known to have chemicals that cause cancer, birth defects, and harm to the reproductive system.